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UK police investigating acid attack at London club; 12 hurt

General view of the Mangle nightclub in Dalston, east London. Police said Monday April 17, 2017 that 12 people were treated at hospitals for burns. None of the injuries were said to be life-threatening. (Jack Hard/PA via AP)

General view of the Mangle nightclub in Dalston, east London. Police said Monday April 17, 2017 that 12 people were treated at hospitals for burns. None of the injuries were said to be life-threatening. (Jack Hard/PA via AP)

Posted: Apr 17 2017 11:03AM EDT

Updated: Apr 17 2017 11:07AM EDT

LONDON (AP) - British police are investigating an acid attack at a London club that led to a mass evacuation.

Police said Monday 12 people were treated in hospitals for burns. None of the injuries was said to be life-threatening. Two men in their 20s were in serious but stable condition.

Police say the problem at the Mangle nightclub in east London started with a dispute between two groups of people that escalated when a male suspect sprayed a "noxious substance" directly at two men.

Roads in the area were closed and a hazardous material response team rushed to the scene.